单层
DNA折纸
DNA
手性(物理)
化学
纳米技术
自旋(空气动力学)
化学物理
结晶学
材料科学
物理
生物化学
量子力学
手征对称破缺
夸克
Nambu–Jona Lasinio模型
热力学
作者
Haozhi Wang,Fangfei Yin,Lingyun Li,Mingqiang Li,Zheng Fang,Chenyun Sun,Bochen Li,Jiye Shi,Li Jiang,Lihua Wang,Shiping Song,Xiaolei Zuo,Xiaoguo Liu,Chunhai Fan
摘要
DNA monolayers with inherent chirality play a pivotal role across various domains including biosensors, DNA chips, and bioelectronics. Nonetheless, conventional DNA chiral monolayers, typically constructed from single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA), often lack structural orderliness and design flexibility at the interface. Structural DNA nanotechnology has emerged as a promising solution to tackle these challenges. In this study, we present a strategy for crafting highly adaptable twisted DNA origami-based chiral monolayers. These structures exhibit distinct interfacial assembly characteristics and effectively mitigate the structural disorder of dsDNA monolayers, which is constrained by a limited persistence length of ∼50 nm of dsDNA. We highlight the spin-filtering capabilities of seven representative DNA origami-based chiral monolayers, demonstrating a maximal one-order-of-magnitude increase in spin-filtering efficiency per unit area compared with conventional dsDNA chiral monolayers. Intriguingly, our findings reveal that the higher-order tertiary chiral structure of twisted DNA origami further enhances the spin-filtering efficiency. This work paves the way for the rational design of DNA chiral monolayers.
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